INFORMATION 



BBLATINa TO THE 



OODRSE OF PRACTICE 



PURSUED FOR 



PROCURING PATENTS 



IN THE UiNITED STATES MD EUROPE, 
AT H.^MOWSON'S OFFICES, 

. Forrest Place, i23i South Fourth St., Philadelphia. 



WITH 



IntoMictoTg imnrlis, ^ertifitattH, fist %l %\\m\\m, h. 



u 



Tha courts always labor to protect a man when they clearly see that ho has made a good invention, 
but has got among a set of bnngling fellows to draw his patent; and many a time we hare had to 
stretch almost our consciences, to help through a good inrention, against a bad description drawn by 
Bome blockhead. 

The truth is, that within a few years past, there have been very few men capable of drawing a 
good specification. The difficulty has been, that mechanics did not understand law. and lawyers did 
not understand mechanics. — Judgz Orier. 



'M 



PHILADELPHIA: 
RICE, PRINTER, 128 SOUTH SECOND STREET. 



1860. . 






Entered accordinj^ to Act of Congress, in the year 1860, by H. Howson^ in th« 
Clerk's Ofiice of the District Court of the Eastern District of Pennsylvania, 



INTRODUCTORY REMARKS. 



The profession of procuring patents for inventions, is peculiar in many 



respects. 



The diversity of the titles assumed, and the variety of inducements 
held out by parties engaged in transacting business at the Patent Office^ 
for the purpose of attracting the attention of inventors^ are prominent 
peculiarities. 

The old-tlishioned title of Patent Agent, appears to have been abandoned 
for the more ostentatious designations of Patent Attorney, Patent Solicitor^ 
Counselor for Inventors, the somewhat quaint title of Counselor at Patent 
Law, and other terms of such a character, as to lead to the belief that we 
shall shortly hear of Patent Emporiums and Patent Depots. 

The inducements held out by agents for inventors, for the purpose of 
procuring business, are both numerous and peculiar. 

There are the circulars and advertisements of the firms who make an 
outcry about the number of patents they obtain weekly, who measure 
their acquirements and competency by the quantity and not the quality 
of the Patent Peeds which they procure. 

There is the agent who declares himself a practical machinist, in terms 
which imply that the capability of designing or constructing machinery, 
is alone sufficient to constitute a competent practitioner. 

Then we have the Professor of some art or science, the M. P., the C. E. 
and M. A. and the man learned in the Law, ail setting forth their claims 
to the title of the most trustworthy and efficient. 

By others again, a parade is made of the fact that they were formerly 
connected with the Patent Office, and must therefore be the most reliable 
men. 

The agent who issues circulars containing covert allusions to especial 
and secret influences which, he alleges, can through him be exerted in 
the Patent Office, is not uncommon, neither is the man who offers to 
assist inventors for a remuneration, which no man of standing and relia- 
bility can affijrd to accept. 



The attention of the unwarj inventor, is not imfrequently attracted by 
such signs as ^' Branch Patent CJ^ce," " U. S. Patent Office,^' with 
which ambitious agents occasionally decorate their premises. 

There are the agents who infest the Patent Offoe, and whose method 
of procuring business savors strongly of that adopted by emigrant runners. 

Lastly, there is the mysterious agent, whose main employment appears 
to be that of sending to inventors, letters setting forth that he is possessed 
of certain important secrets, which he will dispose of for a consideration. 

Notwithstanding the array of talent which would appear from circulars 
and advertisement to be displayed in the procuring of letters patent, it is 
an indisputable fact, that at a moderate 'calculationj nine out of ten 
patents are worthless. 

It is neither the Patent Office nor the inventors who are reprehensible 
for this. 

In almost every instance the cause of a defective patent, may be traced 
to the man who prepared the papers for the application; to some young 
man not content with occupying a subordinate position for a sufficient 
length of time in establishments where by patience he might gain the 
requisite experience, to assume the position of a competent agent; to young 
men who, without any originality or education, get possession of a few 
printed forms and deem them sufficient capital on which to commence 
operations; and to men whose standing and circumstances are such that 
they cannot affi^rd to give good advice to inventors. 

A practical knowledge of machinery, a familiarity with scientific sub- 
jects generally, and a proper amount of legal information, are attainments 
which go far to constitute the requirements of a competent agent. 

These however are of no avail without others, which may be enumerated 
as follows : — a faculty for describing complex mechanism in plain and 
concise terms; the capability of forming correct judgments as to mechani- 
cal equivalents; a facility for framing brief and pointed arguments; pro- 
ficiency in the management of contested cases ; a familiarity with the 
workings of the Patent Office, and an intimate knowledge of important 
legal decisions. 

These attainments constitute the practice; the mechanical, scientific 
and legal knowledge are but the theory. Practice cannot be attained 
without a lengthened experience. 

The duties of a Patent Agent are of the most responsible character. It 
is the conscientious and accurate performance of these duties on which 
the inventor must depend, when he looks forward to a just reward for 
his ingenuity and perseverance. 



In very many instances inventors deprive themselves of comforts, and 
not Tinfrequently of necessities ; work and study night and day to carry 
out inventions on which are centred all their hopes for the future ', hopes 
too frequently crushed by the bungling action of some ignorant and incom- 
petent Patent Agent. 

Every inventor has a right to demand from an agent, satisfactory proofs 
that he has the ability and experience to prepare the necessary papers 
to prosecute the application to a successful issue should difficulties arise, 
and to place and retain the inventor in a position which shall protect 
him in the full and uninterrupted enjoyment of his patent when granted; 
and no man has a right to declare that he is a reliable agent, unless he 
has such proofs at hand — unless he can show the applicant what oppor- 
tunities he has had of acquiring the position he assumes. 

It is for the purpose of complying with the above reasonable demands 
of inventors, that the accompanying certificates and references have been 
published; certificates which will show that if the writer cannot take his 
place among competent Patent Agents, he has made a bad use of the 
time and opportunities afforded him of acquiring the necessary proficiency ; 
and references which will enable inventors to inquire for themselves, 
whether the writer has the ability and experience to prosecute their 
applications with success. 

Another object of this pamphlet, has been the publication of the rules 
and course of practice adopted by the proprietor of the above establish- 
ment in conducting patent business; rules set forth in such terms that 
it is believed no misunderstanding can take place between agent and client. 

In the management and prosecution of patent matters, it is impossible 
at all times to please all parties; a patent agent must, of necessity, now and 
then, incur the displeasure of an inventor. 

It is sufficient to observe, that every effort has been and will continue 
to be exercised to avoid such contingencies, and that the continuance of 
that close attention to the interests of clients which alone can preserve the 
reputation of a man in any profession, will be persevered in to the utmost. 

In conclusion, the writer has to thank the inventors of this city and the 
neighborhood, for the many marks of confidence and esteem of which he 
has been the recipient ; for the many important cases intrusted into his 
hands, and for the patronage extended to him since he established his 
offices in Forrest Place, five years ago; during which time he has acted as 
agent in the prosecution of upwards of one thousand applications for 
patents, has been leading counsel in nineteen cases of interference, and 
obtained ninety-five foreign patents. 

JSej^t'r 1st, 1860. HENRY HOWSON. 



COUKSE OF PBACTICE 

Adopted at H. Eowson^s United States and European Patent Offices, 
Forrest Place, 123 i South Fourth Street 

This establishinent lias no connection with any agency in Washington 
or other city in the Union -, every application being conducted through 
all the requisite stages under the immediate supervision of the proprietor. 

Efficient draughtsmen and clerks are constantly employed with a view 
to the prompt execution of all necessary papers, as the too common plan 
of having the drawings executed at independent establishments, is 
deemed inconsistent with that accuracy and secrecy which the nature of 
the business demands. 

With a view of maintaining appropriate privacy, the offices have been 
arranged in such separate and distinct apartments, that confusion and 
exposure of all secret papers and models are avoided. 

Books of reference containing a complete list of American Patents may 
be perused by inventors, to whom a clerk will always render every assistance. 

The most popular mechanical periodicals published in London are*^ 
received regularly, and may also be perused by those interested in foreign 
patents and inventions. 

The proprietor will visit the Patent Office, Washington, at intervals of 
two weeks or thereabout, as heretofore, for the purpose of prosecuting 
rejected applications, making preliminary examinations, consulting with 
the examiners, and transacting other business which cannot be promptly 
and properly attended to without an examination of the records of the 
Patent Office, and personal interviews with the officials. * 



CONSULTATIONS. 

No charge will be made for such consultations and preliminary examina- 
tions as occupy but little time and research. When written reports relating 
to the novelty and patentability of inventions, or to cases of alleged 
infringements, are required, a charge commensurate with the duties per- 
formed will be made. For examinations demanding a personal examination 
of the records of the Patent Office, a fee of five dollars will be charged. 
Office hours, from 9 A. M. to 3 P. M. Evening consultations between 
7 and 9 o'clock, at the proprietor's private residence, by previous 
appointment. 

* Every experienced inventor will be aware that a patent agent cannot prosecute 
his bnsinegs successfully, without repeated visits to "Washington. 



CAVEATS. 

Immediate attention will be paid to the filing of caveats before other 
work, as prompt action in such cases is generally demanded by the interests 
of inventors. The charge for filing a caveat, exclusive of the Govern- 
ment fee, will range from ten to fifteen dollars, according to the nature 
of the invention, extent of drawings, &c. 

There exists a prevalent opinion that any rough sketch and hasty de- 
scription of an invention, are sufficient to file in the Patent Office as a 
caveat. Nothing can be more erroneous; as the interests of inventors may 
be jeopardized by the careless preparation of the necessary papers which 
should be sufficiently explanatory, and at the same time, of such a general 
nature as to cover all modifications and combinations which the inventor 
may have to resort to in completing his invention. 



APPLICATIONS FOR PATENTS, 

Every application will be attended to according to the order in which 
it is entered on the books of the office, excepting in cases demanding 
immediate attention. 



FEES. 



In regulating the charges for making applications for Patents fop in- 
ventions, the latter have been divided into five classes ; the cost of the 
first being §25, the second $30, the third S3 5, the fourth 840, and the 
fifth $45, exclusive of the Government fee of §30. 

Space cannot be afforded for a tabular statement, as to what inventions 
are allotted to the different classes. It will be sufficient te observe that 
those of the first, second and third classes, are the most numerous, and 
that applications for patents of the fourth class, are of comparatively rare 
occurrence ; one of the fifth class must be of a very elaborate and intri- 
cate nature indeed. 

The above charges include all expenses for specification, two complete 
drawings, oath, packing and express charges, and everything necessary 
for completing the application. 

Both agency and Government fees are due when the papers have been 
approved of and are ready to forward to the Patent Office. 

The official notice of the filing of the papers, model, fees, &c., will be 
forwarded to the applicant immediately after its receipt. 



8 

EEJECTED APPLICATIONS. 

As a separate pamphlet (for which, the reader is requested to apply) 
has been published, relating to the important duty of prosecuting rejected 
applications at this office, a brief statement of the rules adopted will 
suffice. 

When an application is rejected, a copy of the letter will be at once 
forwarded to the applicant. 

The usual plan of demanding exorbitant fees contingent on the grant 
of a patent for a rejected application, is discarded. 

Whatever extra expense is incurred in prosecuting a rejected applica- 
tion, (and it rarely amounts to more than $5,) a bill for such service 
will be presented to the applicant when the patent is granted. 

Applications rejected in the hands of other agents, who have not 
facilities for prosecuting them by personal attendance at the Patent Office, 
and cases where an application is rejected through the imperfect and 
bungling nature of the papers, and through no fault of the inventor^ are 
repeatedly deposited in this office for completion ; in such cases it has^ 
been the practice to charge a moderate fee, depending upon the nature 
of the case, one-half of the fee to be paid in advance, the other half on 
the grant of the patent. 



SPECIFICATIONS. 

In all applications for patents made through this office, the specifica- 
tions and claims are framed by the proprietor alone, whose time is espe- 
cially devoted to this branch of the business, to the prosecution of 
rejected applications, to the management of contested cases, and foreign 
applications. 

The specifications are prepared with a view of procuring patents of 
that substantial and valid character, which alone can establish inventions 
on a well protected footing : such patents in fact, as will be so satisfactory 
to the inventor, as to induce him to continue his patronage and recom- 
mend this office to his brother inventors. 

Whatever success has attended the management of this establishment, 
it has, in the main, been owing to the strict observance of this rule. 



RE-ISSUES. 

A patentee or owner of the entire right to a patent, can, when the 
latter is deemed defective, surrender the same and apply for a re-issue. 



9 - 

The refraining or reorganizing of defective patents demands much 
circumspection and care, and is generally attended with much labor and 
research, and not unfrequently with much opposition on the part of the 
Patent Office. 

Much experience has been gained in the preparation of the necessary 
papers for re-issues at this office; the charges exclusive of the Govern- 
ment fee ($15) varying from |25 to $50. 

It should be understood, that if the patentee has sold a portion of his 
interest, he is incapacitated from re-issuing his patent, ufiless he re-pur- 
chases from his assignees and thus becomes the sole owner of the invention. 

The writer can call to mind many instances in which the interests 
of inventors have been seriously and often fatally damaged by this 
inability to re-issue, which shows the importance of having the papers 
for making the application for a patent properly prepared in the first 
instance. 



INTEEFEHENCES 

Are declared by the Patent Office when applications for the same or 
nearly the same invention are made by different inventors about the 
same time. That office will also at the request of any applicant for a 
patent, declare an interference between his application and an existing 
patent. 

Testimony must be taken by the contending parties, with the view of 
ascertaining which is the prior inventor; this testimony, together with 
arguments of counsel, must be filed in the Patent Office at an appointed 
time, to await the Commissioner's decision, from which an appeal can be 
taken to U. S. District Court, District of Columbia. The charges for 
conducting interference cases depends entirely on the amount of time 
consumed in prosecuting them. 

It has been the practice at this office when an interference has been 
declared, to endeavor to effect an amicable arrangement between the 
opposing parties. This is by far the best course, as it is impossible to 
foresee at the commencement, what time may be consumed, and expense 
incurred in the management of a hotly contested case. 

Unfortunately, these attempts to effect an amicable compromise, are 
frequently frustrated by intriguing agents, who are ever ready to make 
capital out of every unfortunate incident. It would be well for inventors 
to pause and reflect before entering into a contest, which frequently 
results in a loss of money, exciting suspense, and bitter disappointment, 



10 

all of wliicli miglit be avoided by a few concessions on both sides. There 
are interference cases^ however, which forbid all thought of compromise — 
cases in which the most gross piracy is committed, and in which the 
productions of the true inventor are unceremoniously jBlched, and appro- 
priated by unprincipled scoundrels who are ever ready to prey upon the 
meritorious, but frequently too-confiding inventor. 

Other interference cases again have their origin in the jealousy, envy 
or avarice, or all three combined, of some would-be inventor, who has 
for a length of time nursed some foggy and undeveloped notion which 
he has not the brains to carry into effect, but which an ingenious, 
skillful and energetic man, has conceived and fashioned into^an invention, 
useful to the public and profitable to himself. The dreamer has an 
interference declared, with the idea that he has the right to all that has 
been accomplished by the tact of the more practical inventor. 

Cases of this class are open to the practice of the most subtle plottings 
and manouvres, which require all the sagacity and vigilance of an 
experienced agent to detect and thwart. 

The management of interference cases is entirely distinct from ordinary 
law practice, inasmuch as it demands that mechanical and scientific know- 
ledge, which few legal practitioners have time to acquire. 

Inventors desirous of inquiring further into this subject, can, on 
application to this office, be furnished with pamphlets relating to cases 
conducted by the proprietor. 



PATENTS FOE DESIGNS.* 

Ornamental articles of manufacture, which do not form proper subjects 
for ordinary patents, may be protected by what are generally known as 
patents for designs, which have no reference to the utility, but merely 
to the shape and configuration or ornamentation of the object. 

The duration of patents of this class is seven years, the Government 
fee being $15. The cost of preparing the necessary papers at this ofiice, 
varies from $15 to $20, according to the extent of drawings, &c. 

* A bill prepared by the writer, and relating to this class of patents, is no\r 
before the U. S. Senate. Should this bill pass, patents for designs may be obtained 
for four, seven or fourteen years, at the option of the applicant, the Gorernment 
fees being $8, $15 and $30.] 



11 

MODELS. 

In preparing models for applications for patents, it is desirable that 
they should be as simple and as neatly finished as circumstances will 
permit — a clumsy and incomplete model being looked upon with disfavor 
by the Patent Office. 

The making of proper models, will be contracted for and superintended 
at this" office when required. 

DUPLICATE DRAWINGS 

Independent of those required by the Patent Office, will be furnished 
at a moderate cost. 



ASSIGNMENTS, AGREEMENT AND POWERS OF 

ATTORNEY. 
A supply of assignments printed in such a form as to be readily filled 
up to suit the requirements of ordinary transfers, is always maintained 
at this office. The cost of preparing assignments, for the preparation 
of which no printed forms can be used, will vary according to their 
length, and the time occupied in consulting as to their purports. 



THE PURCHASE AND SALE OF PATENTS. - 

It has been the invariable practice of the proprietor of this office— and one 
which it is contended all faithful patent attorneys should strictly observe 
— not to speculate or become pecuniarily interested in patent property. 

The selling of patent rights, too, is a business of a mercantile charac- 
ter, and entirely apart from that of procuring them. All such business 
will, therefore, be declined at this office; where, however, such informa- 
tion as is necessary, preparatory to the purchase of any patent, may be 
obtained, and the requisite papers for effecting transfers prepared. 



OFFICIAL COPIES. 
By arrangements made with the proper authorities, all certified copies 
of patents and other documents from the records of the U. S. Patent Office, 
are prepared immediately on the receipt of the order from this office, and 
for warded when completed, the proprietor being responsible for the pay- 
ment of Government charges. 



12 

The delay usually incurred in writing for information, as to the cost of 
copies, in order to make payments in advance, is thus obviated. 



SUITS FOR INFUINGEMENT. 

Preparatory to commencing an action for infringement, or in making 
arrangements for defending the same, every precaution is required, not 
only to ascertain the probable validity of the patent which forms the 
subject of contention, but to collect available testimony. 

The taking of these preliminary steps, is more properly the province 
of a patent agent, than of the counsel whom it is proposed to retain, and 
who should be furnished in the first instance, with a statement in 
detail, of all facts and suppositions which have a bearing on the case, 
thereby relieving him from the duty of personally instituting elaborate 
researches and inquiries. 

The writer will continue as heretofore, to take charge of such cases. 
As to his ability to perform these important duties efficiently, he refers, 
by permission, to the following gentlemen: — Theodore Cuyler, Esq., 
F. C. Brewster, Esq., W. H. Rawle, Esq., Attorneys-at-Law, Philada. 



FOREIGN DEPARTMENT. 

The procuring of Foreign Patents, is a business with which, but few 
agents are fully familiar. 

As patent laws differ very materially in different countries, that informa- 
tion necessary for the proper prosecution of this branch of the profession, 
can only be acquired by lengthened experience, study and research. 

The business in the Foreign Department of this office, has been con- 
stantly increasing during the last five years; at the present time it is 
exceeded in extent by few similar establishments in the Union. 

In making this statement, the proprietor does not lay claim to any 
superior scientific attainments in which he is excelled by many able 
practitioners. Whatever success has resulted in the management of his 
Foreign Patent Department, may be attributed to the experience he has 
gained by actual practice abroad, an experience which enables him to 
prepare the necessary papers with that exactitude and precision, which 
the laws of different countries demand. 

As a pamphlet containing particulars relating to foreign patents, may be 
had on application to this office, the following general remarks will suffice. 



13 

The charges for proeuriog foreign patents are moderate, the proprietor's 
European experience, enabling him to complete all the papers in this 
country, instead of paying agents for revision and correction abroad. 

The agents in the different European .cities have been selected not 
only as gentlemen of integrity, punctuality, and ability, but as occupying 
a position which enables them to give publicity to inventions, and to pay 
due attention to the interests of inventors. 

As remarked above, all business relating to the sale of patents in the 
United States, is declined at this office 3 as regards foreign patentgj 
however, the case is different, as the owners have seldom the opportunity 
of bringing them into the market. The utmost endeavors will therefore 
be exercised, to obtain through reliable agents, an adequate remuneration 
for all foreign patents obtained through this office. 

HENRY HOWSON. 



CERTIFICATES. 

This is to certify that Mr. Henry Howson, served an apprenticeship of 
six years to the business of Engineer and Millwright in my establish- 
ments, in London and Manchester, and that he fulfilled all the covenants 

in his indentures to my entire satisfaction. 

William Fairbairn. 



Bridgewaier Foundry, Patr%croj% neccr Manchester, \ 

September 9th, 1848. j 

Mr. Henry Howson has been my principal draughtsman dui'ing the 
last four years. He has given me the greatest satisfaction, and I have 
much pleasure in being enabled to recommend him as a skilful designer 
of machinery, and as a neat and rapid draughtsman. 

James Nasmtth. 



Manchester, September 14fA, 1848. 
Dear Sir: — It affords me much pleasure to bear testimony to your 
abilities in the various departments of mechanical engineering, drawing, 
&c. As one of my own pupils, it gives me great pleasure to hear of your 
success in your last situation with Mr. Nasmyth, and I have no doubt you 
will, by future exertions in works of utility, still farther extend your 
success. Should you require any farther reference, you may command, 

Dear sir, yours truly, 

William Fairbairn. 



14 

Franhlin Iron Works, Philadelphia, ") 
January 2^th, 1855. j 

I have great pleasure in bearing testimony to tbe abilities of Mr. Henry 
Howson as a designer of machinery and mechanical draughtsman, of 
which I have had ample opportunities of judging, during the eighteen 
months in which he has occupied the situation of leading mechanical 
draughtsman at my above establishment. 

A thorough practical experience of general machinery, together with 

an excellent education, enables him to carry out the most intricate works 

with facility. As a gentleman of character and probity, as well as on 

account of his extensive information on scientific subjects, I would 

especially recommend him to the attention of those who are interested in 

Patents and new inventions. 

James T. Sutton. 



Easton, October 20th, 1856. 

I feel it incumbent upon me to avail myself of every opportunity of « 
recommending Mr. Henry Howson as a prompt, eSicient, and untiring 
Patent Agent. I have just cause to appreciate Mr. Howson's services, 
as he succeeded in obtaining a favorable decision in an interference 
case, which, previously conducted by others, had been decided against 
me. I attribute his success to the able manner in which he collected 
the evidence, and to his pointed argument. 

' J. C. SCHLOUGH. 



Philadelphia, November 1st, 1856. 

I have on several occasions availed myself of Mr. Howson's valuable 
services, and in every instance have fo^nd him to possess that ability 
and untiring zeal for the interest of his clients, so desirable in a Patent 
x\gent. 

Mr. H. acted as my attorney throughout a tedious and complicated 
interference case, in which he exercised admirable tact and discrimina- 
tion. 

He possesses the advantag;es of a thorough practical knowledge of 
machinery in all branches, and is familiar with the Patent Laws of both 
this and other countries. 

Joseph Bond, Jr., 

Patentee of Bond's Beioing Machines. 



16 

Eblmeshirg, Odoher 20th, 1856. 

It affords me much pleasure to have an opportunity of publicly re- 
commending Mr. Howson to the notice of inventors, as an able and 
successful Patent Agent. 

One of mj applications, which had previously been rojccted in the 
hands of two other Agents, was finally, by Mr. Howson's exertions 
granted by the Commissioner. 

To his practical knowledge of mechanism generally, his familiarity 
with the Patent laws, the careful manner in which ail his papers are 
prepared, and his constant attention to the case, his success is owing. 

George Fetter. 

i\eio York, October ISih, 1857. 

As a client of Mr. Howson's, I have had the pleasure of being in- 
timately acquainted with him for the last two years. As my attorney, 
he conducted and brought to a successful termination a protracted inter- 
ference case. 

I can bear witness to his untiring zeal in behalf of his clients, and to 
the able and masterly manner in which he conducts his cases. 

B. F. G-RINNELL, 

0/ the Firm of GrinneU & Son, New York and Jersey Cifv. 



BurVnigton, Iowa, October Id, 1857. 

Dear Sir : — I take great pleasure in furnishing the certificate which 
will be found within, and shall always be happy to learn that you meet 
with that success which your information, industry, and good judgment 
will be sure to command. Yours, very truly, 

Henry Howson, Esq. Charles 3Iason. 

Burlington, Iowa, October 2d, 1857. 
Dear Sir : — I take this occasion to state to you, that for several years 
past I have been acquainted with the manner in which you have con- 
ducted your business as Patent Solicitor. This has always been highly 
creditable to yourself and satisfactory to the Patent Office. You under- 
stood your cases well, and presented them in that intelligible form 
which generally insured success. I forward this certificate hoping that 
it may be serviceable to you in continuing to find that employment in 
your profession, to which your intelligence, industry, and courteous 
bearing, so justly entitle you. Yours, very truly, 

Charles Mason, 
Henry HoweoN, Esq. Lat& Commissioner of FatenU, 



16 

MorrisviUe, Pa.y Jkay 20^A, 1860. 

A thorough, practical as well as tlieoretical knowledge of the princi- 
ples of mechanics, as applied to machinery, with an extraordinarj 
faculty of explaining the most intricate combinations concisely, yet com- 
prehensively, in plain and simple terms, and strong reasoning powers, 
enable Mr. Howson to hold that high position among the leading 
members of his profession, which his promptness and ability in prose- 
cuting all business relating to patents, have so well and successively earned 
for him. 

Mr. Howson has conducted nint applications for me, before the Patent 
Offices of the United States and Great Britain, all of which belonged to 
those classes of machinery in which the most obstacles are thrown in 
the way of the applicant, yet in every case he has obtained Letters 
Patent. 

Samuel Comfort, Jr. 



Willow street Stove and Hollow- Ware Foundrij, \ 
Philadelphia^ May mth, 1860. j 

Mr. H. Howson has acted as our patent attorney during the last three 
years. Y»^e have always found him attentive and conscientious J in the 
management of the numerous cases which we have had the pleasure of 
placing in his hands, and it gives us much pleasure to be enabled to re- 
commend him as a most efficient and pains-taking patent attorney. 

Stuart & Peterson. 



Philadelphia, May 21th, 1860. 
Having employed Mr. H. Howson in a waraiily contested case of inter- 
ference, which, through his valuable services, was decided in our favor, 
we take great pleasure in paying a tribute to his experience,'* integrity 
and perseverence, which, together with his favorable standing with the 
authorities of the Patent Office, recommend him as the right man to 
conduct all patent business, especially such as is of an intricate nature. 

Abbott & Noble. 



AW Yorhy May 2dth, 1860. 
Mr. H. Howson, of Philadelphia, acted as my counsel in the interfer- 
ference case of J. S. Swan, Assignee of J. J. Couch vs. A. Barthoffi 
The matter in issue was an improvement in Sewing Machines, and re- 
sulted itt d^eisions favorable to me, both before the Comraissi©ner of 



17 

Patents; and on appeal^ before his Honor Judge Merrick, of the U. S. 
District Court of tlie District of Columbia. For tbis result I consider 
mjeelf largely indebted to my counsel, whose energy and marked 
ability were fully displayed in the thorough sifting of the complicated 
teetimony, which wae introduced in the clear and forcible summing-up of 
the eyidence, and in the prompt attention given to eyery detail which 
had a legimate bearing upon the case. 

J. S. Swan, 

24 Spruce Street. 



EEFERENCES. 

Hon. C. mason, - - - Late Commissioner of Patents. 

THEO. CUYLER, Esq., Attorney. at Law, - - Philadelphia. 

F. C. BRSYfSTEB, Eaq. ^^ " . - . « 

W. H. KAWLE, - - ^^ '^ - - - " 

C. D. FEEEMAN; Esq. - ^' " - - . <' 
S. P. HALL. ..""... 



The following List contains the names of a few of the gentlemen and 
firms for whom Patent Business has been transacted at this office, and 
to whom the proprietor is permitted to refer. 

John C. Trawtwine, Esq. C. E. - - - - Philadelphia. 
Elwood Morris, Esq., C. E. - - - - - '^ 

J. W. Murphy, Esq., C. E. " 

F. C. Lowthorpe,'Esq., C. E. Trenton, N. J. 

Samuel Archbald, Esq., Engineer in Chief, U. S. N. Washington, D.C. 
W. W. W. Wood, Esq., Chief Engineer, U. S. N. - Philadelphia. 
J. P. Whipple, Esq., " '' " - " 

Prof. J. F. Frazer, " 

Prof. R. E. Rogers, JI.D., " 

Prof. B. H. Rand, M.D., " 

Messrs. A. k P. Roberta, Peacoyd Iron Works, - - " 

Messrs. Seyfert, McManus & Co., " ^' - Reading, Pa. 

MeaarB. Burnish, Trlbot & Yardley, " " - Pottsville, Pa. 

Messrs. Abbott c, Noble, Stove Works, - - - Philadelphia. 
M^grs. Stuart ^ Petwson, " " . . . « « 



18 



Philadelphia. 



Bordentown, N. J. 

• Holmesburg, Pa. 

Philadelphia. 

Albany, N. Y. 

Philadelphia. 



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Reading, Pa. 

Philadelphia. 

Bordentown, N. J. 

Philadelphia. 



Messrs. Cox, Whiteman & Cox^ Stove WorkS; 

John Clark, Esq., 

J. B. Kohler, Esq., 

G. W. Thompson, Esq., 

B. F. Honey, Esq., - 

jMessrs. Smith & Brown, Stove Pattern Makers, 

B. D. Granger, Esq., Inventor of Stoves, &c. - 

B. W. Belson, Esq., " " " 

John x\gnew, Esq., - Engineer and Machinist, 

Messrs. Blorgan & Orr, - 

Washington Jones, Esq., 

Messrs. Bement & Dongherty, " 

James Milholland, Esq. " 

Messrs. Sutton & Co., " 

3iessrs. the Bordentown Machine Co., 

Messrs. the Peoples' Works, 

B. Stratton, Esq., - - - Engineer and Machinist, 
Messrs. Wilbrah^am k Whittington, ^' '' " 
Manoah Alden, Esq., 
G. Stites, Esq., 
J. L. Kite, Esq., 
T. Stewart, Esq., . - 

C. H. Mellor, Esq., - 
W. H. Howard, Esq., 
W. H. Harrison, Esq., 
G. C. Howard, Esq., 
Cyrus Chambers, Jr.^Esq., 
J. H. Dialogue, Esq., 
Camden Manufacturing Co., 
B. L. Griffith, Esq., Engineer and Machinist, 

D. K. Peoples, Esq., " 
J. C. Schlough, Esq. " 
J. L. Pott, Esq., " 
B. R. Taylor, " 
Messrs. Pascal, Morris & Co., Agricultural Impl't. M'rs. Philadelphia 
Messrs. Emlen, Passmore & Co., 
Messrs. Boyer & Brother, 
H. E. Smith, Esq., 
Messrs. W. & C. Crook, - " '< " New Hope, Pa. 
Messrs. Perry & Hillings, - " " *' Norristown; Pa. 



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Camden, N. J. 

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Beading, Pa. 

Frankford, Pa. 

Easton, Pa. 

Pottsville, Pa. 

Beading, Pa. 



19 



G. Fetter, Esq., Agricultural Iiupl't. M'rs. - - Holmesburg, Pa. 
Messrs. Murphy & Allison, Car Builders, - - - Pliiladelphia. 
Thomas Castor. Esq., - ^' " - Frankford, Phila. 

Pt. E. Car Spring Co. - - - - - Philadelphia. 

Messrs. Kipple & Bullock, - - - - - Philadelphia. 

T. McMullin,Esq., '' 

S. Comfort, Jr., Sewing Machine Manuf V, Morrisviile, Bucks Co., Pa. 
J. Bond, Jr., " " '^ - Bridgeport, Conn. 

H. B. Odiorne, " . " <' . . Philadelphia. 

Messrs. Fetter & Co-, " '' - Ilolmesburg:, Penna. 



■C37 



New York. 



Philadelphia. 



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Pottsville, Pa. 
Philadelphia. 



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D. J. Levy, Esq. Eureka Sewing Machine, 

J. J. Couch, Esq., Inventor Sewing Machines, - 

J.. H. Cooper, Esq., " " " - - 

J. H. Spencer, M.D. " " " - - 

T. Lamb, Esq., " " " - - 

J. Rice, Esq., Contractor and Builder, 

J. L. Dutton, Esq., " << . . . 

Isaac Edelman, Esq., *^ <( . . . 

T. P. Lykens, '' " _ . _ 

A. B. Cooley, Esq., Contractor, - - _ . 

Hon. John W. Forney, of the Press, Clerk of House R's., 

H. G. Leisenring, Esq., of the Commercial List, 

T. M. Coleman, Esq., of the Ledger, - _ . - 

William Rice, Esq., Printer, 

Howell Evans, Esq., '• . . > . 

Messrs. Hay& Co., - Glass Manufacturers, - 

Messrs. Kartell & Letchworth, '^ ^' 

Messrs. Whitney Brothers, " ^• 

Messrs. Grinnell & Sons, Merchants & Manuf. of Jewelry, New York 

Messrs. Gardner & Decker, Picture Frames, - - - '^ 

J. S. Swan, Esq., Leather Merchant, 

Nathan Middleton, Esq., Iron Merchant, 

Allen Middleton, Esq., <i . . . . 

Messrs. the Rice Cleaning Company, 

Messrs. Handy & Brenner, Hardware Merchants, 

Augustus Hunt, Esq., Knickerbocker Ice Company, 

W. P. Walter, Esq., Hardware Merchant, 

Henry Maull, Esq., Timber ^' 

Messrs. Lucas & Co., Paint and Color Merchants, 

Igaao Rehn, Es^., Photographer, 



Winslow, N. J. 

Philadelphia. 

Glassboro' N. J. 



Philadelphia. 



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H. Disston, Esq., Saw Manufacturer, - - - PliiladelpLia. 
Messrs. Code, Hopper & Gratz, Gas Meter Manufacturers, - " 
Messrs. Harris & Brother, - " " - " 

A. B. Davis, Esq., Scale Manufacturer, . . . . " 
M. Landenberger, Esq., Woollen ^^ - . . <( 

H. G. Armstrong, Esq., Paper Bag " . _ . " 

Thomas Lovelidge, Esq., Woollen '• - - Germantown. 

Christian Sharps, Esq., Sharps' Firearm Factory, - Philadelphia. 
Messrs. Mason & Co., Blacking and Ink Manufacturers, - '' 
Henry Belfield, Esq., Brass Founder, &c., . - . - ^' 

C. Hammond, Esq., Edge Tool Manufacturer, - - - '' 
li. Scott, Esq., Wagon Maker, " 

F. C. Meyer, Esq., Silver and Plated Ware Manufacturer, ^' 

D. T. Haaz, Esq., Piano Manufacturer, . - . '^ 
W. F. Warburton, Esq., Hat " - - - " 
Messrs. C. A. Yankirk & Co., Lamp Manufacturers, Frankford, Phila. 
Jesse Nice, Esq. Harness Manufacturer, - - Philadelphia. 
W. J. Young, Esq., Mathematical Instrument Maker, - " 

J. H. Gould, Esq., Ornamental Turner, - . . « 

P, Fox, Esq., Carver, '^ 

Messrs. Rinek, Semple & Co., Rope Manufacturers, 

Jones Yerkes, Esq., Manufacturer of Refrigerators, 

W. E. Lockwood, Esq., Paper Collar Maker, 

G. Selsor, Esq., Coffee Mill Maker, - 
J. Pfafr, Esq., Musical Instrument Maker, - 
A. Rankin, Esq., Locksmith, . - . - 
G. S. Adler, Esq., Morocco Manufacturer, - 
J. 0. Mead, Esq., Silver and Plated Ware, 

C. W. Packer, Esq., Hat Manufacturer, . - 
Messrs. E. Morris & Co. '^ . - - 
Franklin Peale, Esq., late Chief Coiner of the Mint, 

D. C. Enos, Esq., 

F. H. Jackson, Esq., Westmoreland Coal Co., 

J. L. McKnight, Esq., 

Messrs. Barker Brothers, Brokers, 
Chambers McKibben, Esq., Naval Officer, - 
William Wharton, Jr., Esq., - - . - 
J. Tucker, Esq., 






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Easton, Pa. 
Philadelphia. 



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Bordentown, N. J. 
- Philadelphia. 



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LIBRARY OF CONGRESS 



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